VOLTAGE CONVERTING CIRCUIT
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United States of America Patent
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-
N/A
Issued Date -
May 2, 2013
app pub date -
Aug 20, 2012
filing date -
Oct 31, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A voltage converting circuit includes a power supply, a buck circuit a buck circuit electronically connected to the power supply, a current detection circuit electronically connected to the buck circuit and a PWM controller electronically connected to the buck circuit and the current detection circuit. The buck circuit is configured for converting a source voltage and a source current of the power supply to an output voltage and an output current driven by the PWM controller. The current detection circuit is configured for detecting a current variation of the output current. The PWM controller configuring for receiving the current variation of the output current, and driving the buck circuit to increase the output voltage when the output current is decreased, and driving the buck circuit to decrease the output voltage when the output current is increased.
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